Yarn forming machine



Jan. 17, 1933. w.NANFELD-r 1,894,411

YARNFORMING MACHINE l Filed July 1. 1927 6 Sheets-Sheet l Jan. 17, 1933. w. NANFELDT YARN FORMING MACHINE Filed July' 1 1927 6 Sheets-Sheet 2 mv TOR WMM/7 WW2-w7- BYv l ATTORNY YARN FORMING MACHINE Jan'. 17, 1933. w. NANFELDT 1,894,411

YARN FORMING MACHINE Filed July 1'. 19.27 e sheets-sheet 4 @OAV Jan'. 17, 193.3. w. NANFELDT YARN FORMING MACHINEl 6 sheets-sheet 5 Filed July l. 1927 INVENTOR M Mr.' /Vq/vrf-or ATTORNEY Jan. 17, 1933.

w. NANFELDT YARN FORMING MACHINE Filed July 1. 1927 6 Sheets-Sheet 6 INVENTOR n//zU/w /I/A/vffza 7- ATTORNEY Patented Jan. 17, 1933 UNEF" stars PATENT OFFICE WILLIAM NANFELDT', OF PATECRSON, NEW JERSEY, ASSIGNOR T0 VORLD BESTOS COR- PORATION, OF PATERS'ON, NEW JERSEY, A CORPORATION OF DELAWARE YARN nonnina vMACHINE Application mea Juiy 1,

VEhis invention relates to yarn and to a process and machine for manufacturing the same, and particularly to a machine for forming yarn out of asebstos iibres.

One of the obfects of h produce a yarn which has a plurality of reinforcing elements Wound in spaced relation thereon. I

Another object voi the invention is to provide a method of forming yarn by simultaneouslT associating several yarn forming elements.

Another object of the invention is to provide a method for forming'a fibrous material around a reinforcing core and binding the 7fibrous material tothe core.

Another object oi' the invention is to provide a machine for making yarn which will feed several yarn making elements through a die and associate the elements so fed in a manner whereby the strength and durability oi the yarn are greatly increased.

Another object of the invention isA to provide a yarn making machine Withmeans to stop the machine in case of the lbreakage of any one of the several elements making up the yarn.

Another object of the invention is to provide a means tov prevent a partlyformed yarn from twisting as it passes through the machine.

Other objects vand objects relating particularly to economies of manufacture will be apparent as the 'description of the invention proceeds.

Broadly, the-invention comprises a machine in which is supported a spool of core material such as cotton thread or stri-ng and a sup}')iy of fibrous material preferably in 'the form ott a rolled narrow strip of paperlike asbestos material. The cotton thread s led down through a `die together with the strip et paper-like asbestos material in 'such a manner that the strip of paper is formed arcun d the cotton thread or string and at the same time a pair ot reinforcing elements such the invention is 'to :is tine wire are caused to wraparound the 1927. Serial No. 202,796.v

strand thus formed so that the reinforcing.

One embodiment of the invention has been illustrated in the accompanying drawings in which7 Y 1 `is-a side elevation of a yarn forming machine embodying my invention;

Fig. 2 is a sectional plan vView taken on the line 2 2 of Fig; 1 and showing the driving mechanism;

Fig. 3 is a front view of the driving mechanism taken on the line 3 3 of Fig. 1;

Fig. l is a sectional front view of a detail of thestarting handle taken on the line 4 4 oi Fig. 2; 4

Fig. 5 is a cross-section of the yarn elements taken at a point adjacent the entrance. o the elements into the machine;

Fig. 6 is a sectional plan view of the tube through which the yarn elements are drawn and is taken on the line 6 6 of Fig. 7;

Fig. 7 is an. enlarged front elevation partly in section of the element combining mechanism;

Fig. 8 is a sectional front elevation of th teedin and twisting mechanism;

Fig. 9 is a sectional plan View `of a portion of the feeding mechanism taken on the line 9 9 of Fig. 8;

y Fig. 10 is an elevation partly in section of a portion of the winding device showing the manner of removing the spool therefrom;

Fig. 11is a front elevation of the element supporting part 'of the machine showing the stopping means controlled by the continuity of the various elements; and

Fig. 12 is aside view ofthe mechanism shown in Fig. 11. l i

The invention is illustrated in connection with aV frame work of conventional design which supports. the same. An upright 1() comprising a portion of this frame sup-ports a horizontal angle 11 on which is mounted a bearing bracket 12 by any desired means such as the bolts 13. This bracket is bored .to form a bearing 11i and has a U-shaped arm 15 extendingfdownwardly and supporting a ysecond bearing 16 directly below the bearing 14. The bearing 16 is bored to the same diameter as the bearing 14 for a portion of its length and the lower portion thereof has a bore of a smaller diameter suitable to accommodate snugly a tube 17 which extends up-wardly through the bearing 14 and is adapted to receive thel yarn forming elements at its upper end thereof. The tube 17 may be fixed relative to the bearing 16 by means of a screw 18 engaging a suitable groove 18 in the tube so that the same is held from rotation with respect to the frame of the machine. A sleeve19 is adapted to lit around the tube 17 and into the larger diameter bore of the bearing 16 which forms a bearing for thisjsleeve. A pulley 20 is mounted upon the sleeve 19 and may Vbe rigidly secured thereto by a screw 21. The sleeve 19 extends upwardly `through the bearing 14, Vwhich guidesthe same, to a point somewhat abov the upper edge of this bearing.

A Urshaped bracket 22 having a somewhat enlarged base 23, which is bored yout to lit snugly over the sleeve 19, is attached to the sleeve 19 by any desired means so that when the pulley 2O is rotated, the sleeve 19, together with the bracket 22 is also rotated. The enlarged portion 23 on the'bracket 22 is extended downwardly to form a hub 24 which rests upon the top of the bearing-14 and supports the weight of the bracket 22 and associated parts. A spool 25 preferably of finebrass wire or'other reinforcing material is adapted to lit loosely over the tube 17 so that itl may freely rotate thereabout and rests upon the enlarged portion 23 in the Y bracket 22 and also upon the top of the sleeve 19 which may be formed flush therewith. I preferably provide a leather washer 26 between the bottom of the spool 25 and the enlarged portion 23 of the bracket to prevent Vthe spool 25 from turning too fast upon the tube 17. V About midway up each arm of the bracket 227 and on the inner side thereof, I provide a lug 27 upon which rests a brace or support 28 for the purpose of supporting a second spool of wire or other reinforcing material 29. A leather washer 3() may also be provided to fit between the bottom of the spool 29 and the support 28 to prevent too rapid rotation of the spool. The brace or support 28 may be slotted at the ends as at 31 and a rib 32 may be provided on the inner edge of the arms of the bracket 22 just above the lug 27 so that the support or brace 28 may lit upon the lugs 27 and be held against any horizontal movement bv the slots 31 engaging the ribs 32. An opening 33 is provided in the support 28 to permit the tube 17 to pass therethrough.

A grooved freely rotatable pulley 34 is mounted upon one of the arms of the bracket 22 byv a pivot; screw 35 in a position about mid-way of the bottom and top of the lower spool V25. ln like manner, a second pulley ving grooved pulley wheels 40 at a point somewhat above the top of the spool 29. The arms 38 are prevented from rotating too far in one direction by the lugs 38 and in the other direction by lugs 39 formed integral with the arms 38 on the inner and outer sidesrespectively of the arms of the bracket The upper end of the tube 17 is bored out to a diameter considerably larger than the vsir/.e of the'yarn which passestherethrough and` in the extreme upper end is rigidly' set a die 41 which comprises a cylindrical plug having a hole 42 drilled there through through which the yarn forming elements are"V adapted to pass, the upper edge of this hole is rounded so as to permit the elements forming the yarn to pass into the opening without scraping or tearing the same and a Vgroove 43 may be provided in the side of the plug 41 which cooperates with an indentation 44 in the upper end of the tube 17 to prevent the plug 41 from rotating. Below the plug 41 and forming a support for the same l preferably position three circular sections 45 which are adapted to fit inside of the enlarged vbore at the top of the tube 17 in such a manner that their convex sides are adjacent each other as clearly indicated in Fig. 6 forming a triangular shaped opening through the upper part of the tube. A washer 46 may y be provided if desired to support the sections 45 the same resting upon the shoulder formed by theenlarged bore at the top of the tube 17.

A cylindrical roller 47 is mounted below the lower end of the tube 17 so that the surface of the roller is tangent with the axis of the tube7 a suitable bracket 48 attached to the frameV of the stem 52 is extended on each side there of to form an arm 53 having a pair of openings 54 one in each end thereof, in which are mounted two short shafts 55. Each of the shafts 55 have a pinion 56 attached to the upper end thereof and a pulley 57 havingy a plurality of grooves 58 attached to the lower lend thereof.- 0n eachshaft the pinion 56 bears against theupper surface of the arm 53 and the pulley 57 bears against the lower surface of the arm 53 thereb reventino' axial movement-of the shafts 55. The pulleys 57 may be vrigidly attached to the shafts 54 by means of pins 518 in awellknown manner.

The stem 52 has rotatably ymounted there- 5 upon Va pulley. 59. This pulley has a hub 60 on its lower side to which yis attached a flanged disc 61, t'he'down turned flange 62 of which yis adapted to cover the pini'ons 56 and mounted on the arm 53 with suitable clearance therebetween. A small pinion 63 is preferably formed integral with the hub and extends 'downwardly with respect to the hub and between the pinions 56 meshing therewith.

4kAnother pulley 6d is mountedupon the stem 52, this mounting being preferably attained by threading a portion of the stem 52 to form la somewhat smaller diameter than that portion adjacent the pulley 59 so that a shoulder "65 is formed upon which the pulley 64 may be tightly screwed so that the pulley 64: is fixed yto the stem 52 and turns therewith. Afbar 66 positioned below the pulleys 5,7 is rigidly attached in Aany* desirable manner to a `shaft 67 which extends downwardly and forms-a rotatable support for a spool 68 upon which the yarn is adapted to be wound and which rests 'at its lower end in a bearing 69 suitably mounted as by Ascrews 71 upon au ang-le 7.0 which forms part of the frame of the machine. The lower end of the shaft 67 is preferably turned 'down slightly forming a shoulder 72 which yis adapted to restr upon the top of the bearing 69. Between the bar 66 :and the arm 53 is an upright support 7 3 which rigid-ly connects the bar '66 and the arm .53 for rotation theretogether and which rotatably supports a groove pulley 7l by means :of a bearing screw 75. The pulley 7 l is positioned tangentially of the axis of the tubular member 52 so that yarn passing down through the tubular member may pass over the pulley 74 and from thence several times around the grooved pulley 57 and over the guide Vmember 76 mounted 4by 'mea-ns of a screw 77 on one end yof the arm An arm 78 extends @downwardly from adjacent the guide member 7 6, with which it may be formed integral, if desired. and has a pig tail loop 79 `at the lower end thereof through which the yarn may be 'run and which forms a means to guide the yarn on the spool 68. An angle iron 80 may be provided movabiy mounted with respect tothe frame of the machine and means not shown may be provided forcontinuously raising and lowering the angle so that the spool 68 is continuously raised and lowered as the yarn is wound thereupon.

Means are provided to operate all the moving vparts of the machine from a single rotating source of power.. Tolthis end a dog clutch 81 is splined to a drivin-g shaft 82 located at the rear of the machine. This clutch is `caused to move into and out of engagement with a 6.5 corresponding clutch member 83 yon the driven shaft 8f4 by -a bifurcated lever arm .85 en' front of the machine and is suitably su-pported in bearings 88 and 89 attached to frame members 90 and 91 respectively and at its forward end by bearing 92 mounted .upon the angle iron 11. An arm 93 is rigidly attached to the shaft 87 by any'desirable means such as the pin 94 and has a depending lug 95 at its outer end which has its lower porion 96 reduced in thickness forming a shoulder 97, adapted to receive the end of fa .lever 98 the purpose of which will be vhereinafter described so that the arm 93 may 'be held against acounter clockwise rotation when the arm 98 Aengages theshoulder 97. An arm 99 attached "to the shaft 87 adjacent the bearing 89 is urged in a counter clockwisedirection by the spring 100l which is :attached to some convenient part of the frame and which therefore, lordinarily urges 'the shaft :to rotate .in a counter clockwise direction which by means of the bifurcated arm 85 will disengage the v,clutch members 88 vand 81 thereby stopping the' machine.

A handle 101 preferably formed integral with the arm 93 may be raised to start the machine, thereby rotating the shaft 87 in a vclockwise direction whereupon it is held i-n raised position by the arm 98 engaging the shoulder 97. y

Means is provided to support Iaroll orspool 1.02 of core material such as cotton vthread or string at the -top of the machine Aabove the f winding device shown iny Figs. 1 .and 7 and to this end a spindle 103 is supported in lan upright position upon an langle 104 formi-ng part of the framework of the machine. The

spool 102 is placed over the spindle 103 and f the thread or string 105 therefrom may be led up through a suitable tensioning :device 106 supported on a bracket 107 and thence through a guide 107i and down through :a

guide loop 108 attached to another yangle 109 the frame of the machine and is preferably tilted at an angle to prevent the .roll 111 from slipping off of the pin .113 and also .to ,provide a means to feed the paper-like strip into the rdie al1 at an angle. A roller 116 is provided, rotatably mounted on a suitable bracket 117 attached to the angle 109 and a tensioning device comprising a strip 118 of resilient metal is supported on the bracket 117 and has a conformation similar to .that

of the roller so that the paper-like strip may v be inserted between the roller and the strip 118 to place the strip slightly undertensionl as it is pulled over the roll-er. Y

The thread or string 105 is fed into the die 41 at a'slight angle while the paper-like strip 110 is also fed at an angle'clearly indicated in Fig. 11. The result of both the string and strip entering the die 41 at this angle is to wrap or `curl the paper-like strip around the string as indicated in Fig. 5.

The string 105 properly tensioned by the tensioning plates 106 passes through the loop V108 down intothe die 41 together with Vthe yarn and properly bind the asbestos stripon to the string by wrapping two line wires around the same. This is accomplished by means ofthe device illustrated inFig. 7 in which two spools 25 and 29 of fine wire 119, 120, are used. rlhe spool 25, as above described, is mounted upon the tube 17 yand rests upon the hub 23 of the U-shaped frame 22. The wire 119v from this spool is passed over the grooved pulley 34 and the grooved pulley 40 on the arm 38 to the `die 41 at one sideV of the strand passing therethrough. The wire 120 from the spool 29 which is rotatably mounted at the upper end of the tube 17 is passed over the pulley 36 and the other pulley 40 on the other arm'38 to the opposite side of the strip as it passes through the die 41. Upon rotation of the pulley 20, the sleeve 19 and U-shaped bracket 22 is caused to rotate, thus wrapping the wires 119 and 120 around the strand which isV caused to move through the tube 17 by means of the feeding device illustrated in Fig. 8 and is prevented from rotating. by the triangular" opening formed by the sections 45 in the upper end ofthe tube 17. In order to place the proper tension on the'wires 119 and 120, they may be wrapped if desired several times around the pulleys 34' and 40 and 36 and 40 respectively. The strand including the wrapped wires' passes down through the tube 17 around the roller 47 and into Vthe upper end of the hollow stem 52. From here it passes over the roller 74 and around the multigroove rollers 57 over the guide member 76 Y i rlhe pulley 7 4 is therefore caused to revolve means for the machine and the purpose ofthe several grooves thereon is to provide frictionA between the yarn .and thepulleysv to prevent slipping of the yarn thereupon.- Inasmuch as the pulley 64 is smaller than the pulley 59 it will be evident that this pulley will travel at a faster rate of rotation than the pulley 59, and therefore the pulleys 57 will move vbodily about the airis of the stem*` 52 at a greater speed than the pulley 59 is moving. The pinion 63 isattached to the pulley 59 and meshes with the pinions 56 which are attached to the pulleys 57 by means of the shafts 55. Both the pulleys 64 and 59 are caused to move in the `same direction and therefore, rotation of the pinions 56 and the attached pulleys 57 will depend on the ldif-V forming the yarn. As the bar 66 is rotated with the shaft 67 and about the axis of the stem 52, the guide arm 78 is revolved around the spool 68 with the result that yarn isl wound thereupon. rlhe spool 68 rests upon the angle 80 and is free to turn thereupon` against the action of friction sothat as the diameter of the spool 68 increases as the yarn is wound thereupon, the spool-may turn slightly with the yarn so as to compensate for the varying difference Vin circumference of the spool from the time when the spool is empty to the time when it is fill-ed. rlhe angle 80 is caused by means not shown to continually move upwardly and downwardly thereby properly winding theyarn in regular turns upon the spool. y

rFhe means to drive the machine comprises two grooved rollers 121 and 122 both attached rigidly to the driven shaft 84 and formed integral if desired with the clutch member 83 with which the dogclutch 81 isadapted to cooperate. A continuous belt 123 is provided and this belt is caused to pass over the pulley 1,21 downwardly and under a suitable guide roller 124, around the pulley 59 turning the same ina counter clockwise direction as viewed from the top of the machine, from thence around a second guide pulley 125 and upwardly over another guide pulley 126, for wai-diy again around the pulley 202in a clockwise direction, over loose pulley 129, rearwardly and downwardly passing under and around the roller 122 and thence downwardly and forwardly passing under a guide roller 127 and forwardly to the pull-ey 64, around the same in a counter clockwise direction, under another guide pulley 128 (F ig. 3) and rearwardly to the under side of the pulley 121. The loose guide pulleys 124 and 125 may be mounted upon individual brackets 124 and 125 respectively, while guide pulleys 127, 1228 and 129 may be mounted on a bracket 130 suitably supported on the frame of the machine as by bolts 131. The guide pulley 126 may be mounted on the arm. 126 pivoted tothe bracket 130 at 130 and may be provided with a tensioning device compris-- ing a lever 132 to whichl is attached a cable 133 which passes over a pulley 134 rotatably mounted on the frame of the machine and is attached at one end to a weight 135. A pin 131 may be provided to limit the movement of the lever 126. f

It will be noted that the pulley 20 rotating the winding device is rotated in a clockwise direction while the pulleys 64 and 59 operating the twisting mechanism are rotated in a counter clockwise direction. This has the effect of twistingfthe yarn in the opposite direction to that in which the wires are wound therearound which increasesthe twist of the wires as originally made by the twisting machine. Y

Means have been provided for stopping the machine when either of the wires break or when the paper strip or string breaks or when the supply of either of these elements becomes exhausted. To thisv end a lever arm 136 is rotatably mounted by means of a screw pivot 137 upon the angle 11 at a pint slightly to the right of the U-shaped frame 22, the free end being positioned adjacent the. hub 24 of the bracket 22. This lever arm 136 is curved at its free end to form a cam surface 138 on the side toward the hub 24, and is extended at its right end beyond the pivot 137 to form the arm 98already described. A spring 139 is wrapped about the pivot'137 and engages the angle 11 andv the arm 136 in such a manner as to urge the left end of the lever 136 forwardly and the right end forming the arm 98 rearwardly. It will thus be evident that when the handle 101 is raised, the lever: 136 rotates slightly in av counter clockwise direction so that the end ofthe lever 98 may move under the` shoulder 97 formed on the lug 95 attached to the arm 93 and hold the handle in its upper position at which time the clutch members 81 and 83 are bracket 22 farthesty from theV pivot ofthe lever, the end of which rod is pivotally at.- tached to alug 142: extending-outwardly and preferably formed integral with the arm 3.8 mounted onthat arm of. the bracket'.v The arms 38 being pivotally attached to the ends of the bracketv 22 by means of the'screws 39, are caused to tilt toward the tube 17 by the tension of the wires119 and 120passi'ngover r the rollers and being .wound on to the yarn as it passes: through.V the tube. Thus the lugs 142 are held in their uppermost position and likewise the rods 141 are maintained at their uppermost positions. Each of the levers 140 has a depending lug 143 which during, the normal rotation of the bracket 22 are slightly above the lever arm 36. .When, however, either one of they wires'v breaks, the arm 38 which. forms the guide for such wireis caused to move upwardly and outwardly by centrifugal force; which causes the rod 141 attached thereto; to move downwardly and the lever 140 at the end, of the rod 141 also to move downwardly until the lug 143 comes in the horizontal plane of the lever arm 136. Vhen the lug 143 comes into the plane of the lever 136 it engages the cam surface 138 thereon and causes the lever 136 to rotate slightly in a clockwise direction about the pivot 137, thereby causing the arm 98 at the right thereof to movev out from under the shoulder 97 whereupon the shaft 87 rotates in a counter clockwise direction urged by the spring 100 and thev clutch 81 is separated from thel clutch member 83 thereby stopping the machine. The levers'140 are prevented from moving downwardly too `far by theV lugs 39 on the levers38 which engage the sides of the bracket 22 and limit the movement of the levers 38. A lugy136a formed on the lever 136 providesV a convenient means to stopthe machine manually. l

The machine may also be stopped if the paper strip or string should break or the supply thereofv become exhausted by means forward end 146 of this arm is extended to a point adjacent the hub 24 ofthe U-shaped bracket 22 upon which is provided acam 147. When the Iend 146 o-f the arm 145 moved upwardly it cooperates with the cam 147 as the latter rotates to push the lever 145 together with the arni13z6 rearwardly, but

15() willnot materially move the arm 149.V

A lever arm 151 preferably formed integral with the arm 150 extends downwardly therefrom and has a loop 152 at its lower end thereof which is adapted to bear against one side of the asbestos paper strip 110. A suitable'weight 153 is adapted to be adjustably supported on an arm 154 also formed integral with the arm 150 so that the tension of the loop A152 against the paper strip may be varied as desired.

Y lf the paper strip should break, tie arm i 151 will' move upwardly urged by the weight `a manner already lnasmuch as the cotton string v 153 which will cause the rod 149 to move downwardly, thereby tilting the end 146 of the lever 145 upwardly and into the plane ofthe cam 14'?. vUpon the next rotation of this cam the lever'l45 and arm 136 'are pushed rearwardly,4 thereby releasing the clutch in described and stopping the machine. or thread forms the stengthening core ofthe yarn and provides sufficient strength to pull the yarn through the machine if the string 105 shouldbrealr or the supply become exhaustedthe paper will not have sufiicient strength to be drawn into the machine and will'tear olll at a point where it lenters the upper end of the tube 17. ld] ith the'paper lGO Y 51 which supports the upper end of A broken, the machine iscaused to stop as described above and hence it is evident that l have provided the means to stop the machine when either the paper strip, the string or the wires are brolren or the supply thereof becomes exhausted.V v

ln Fig. 10 is illustrated theymeanswhereby the spool 68 may be removed from the shaftV 67 when the spool has become filled with yarn. 'l`othis end the bearing member Y y the hollow stemV 52 has the lower edge of 'the open-I ing therethrough extended toward the front so that the stem 52 may be tilted therein. There is` also enough clearance between the pulley 64 and the bearing 51 to permit the whole winding and feeding ymeehanismto be raised, thereby releasing the lower end of the shaft 67 from the bearing 69. 'lfhewhole winding and feeding mechanism may vthen be tiltedforwardly so that thespool 68 may Legami be withdrawn from the lower end ofthe v shaft 6?. v Y l lit will also be noted that the drivepulleys used to transmit the motion from the driven shaft 84 to themachine are formed with deep tsl-shaped grooves as illustrated in the draw,- ings. '.llhus the belts do not necessarily have to run on to the pulleys in the plane of the pulleys to stay on the pulley, but the grooves are sufficient to keep the belts running thereoneven when the belt approaches the pulley at a considerable angle, and l have also found it desirable to use a round belt for this purpose as is clearly illustrated in the drawings.

Vhile l have shown and described a paperlilre strip of fibrous material in connection with my yarn forming machine, any strand of fibrous rmaterial may be used'such as ,a roving of asbestos fibres loosely supported upon a strengthening core, the only requisite being that the fibrous materia-l'have suiiicient strength to permit. its being fed into the top ofthe tube 17. v Y Y lt is evident also, that while two strands of reinforcing material have been found desirable, any number may be employed and,

that this material may constitute thread or any other material found desirable to reinforce the yarn and is therefore, not limited to wire.

In a yarn providedwith two or mere strands of reinforcing material wound in spaced turns as described above,'greater tensile strength is obtained, inasmuch as the pitch of the spiral formed by the winding may be much greater and its ability to elongate less than if one strand were-used and the turns brought closer together which would be necessary in order to properly bind the asbestos material to the core. Such a yarn forms an excellent friction element. and may be woven into a fabric producing a highly efficient brake band. Y A

lt will be evident from the above, that l have provided an asbestos yarn, a process for making the same and a machine for carrying out the process which forms asbestos fibre material around a reinforcing core and simultaneously wraps reinforcing Velements around the same and subsequently twists the same to form the completed yarn.r

Many modifications ofthe invention may be resorted to without departing from the spirit ofthe invention, and'l do not desire therefore, to limit myself to the modification described and illustrated in the accompanying drawings, but to interpret the finvention broadly within the scope ofthe appended claims.v l Y f Having thus described' my invention, what Iclaimis: y. f y

l. InV a .yarn making machine,r means to lOZS simultaneously, form a strip of paper-like y material around a string of core material and and means to hold said material against rotation while said forming and winding operations are taking place whereby said reinforcing wire may be slightly embedded in said paper-like material.

2. In a yarn making machine, means to simultaneously form a strip of paper-like material around a string of core material and tightly wind a reinforcing wire therearound; means to hold said material against rotation while said forming and winding operations are taking place whereby said reinforcing wire may be slightly embedded in said paper-like material; and means to thereafter twist said material to form a yarn.

3. In a yarn making machine, a tubular member having an opening at one end for receiving yarn making elements; and means to twist said yarn making elements together as they pass into said opening, said tubular member having an irregular bore adjacent said opening whereby said elements are prevented from turning as they pass through said opening.

t. In a yarn making machine, a tubular member having an opening at one end to receive yarn making elements; means to feed said elements through said opening; means to twist said elements as they pass into said opening; and means adjacent said opening to prevent the rotation of said elements.

5. In a yarn making machine, a member having an opening therein adapted to form a. strip of paper-like material about a string f of core material when said materials are fed through said opening; means to feed said materials through said opening; means to tightly wrap a reinforcing element around said materials as they pass into said opening; and means to prevent rotation of said' materials as they pass through said opening.

6. In a yarn forming machine, a stationary tubular member; means to feed a plurality of yarn forming elements through said member; means to wind a reinforcing element around said yarn forming elements as they pass into said tubular member; and means in said tubular member to prevent the rotation of said elements as they pass therethrough.

7. In a yarn forming machine, a tubular member through which the yarn forming elements are adapted to be drawn; a forming die in one end of said member adapted to compact a plurality of yarn forming elements together; means to twist said elements as they pass into said die; and means withinv said member and adjacent said forming die to prevent rotation of said materials as they pass through said member.

8. In a yarn making machine, a member having an opening therein adapted to form a paper-like material about a string of core material when said materials are drawn through said opening; means to feed )said materials through said opening; means to wrap a reinforcing element around said materials as they pass into said opening and means to prevent rotation of said materials as they pass through said opening, said means comprising a plurality of members interf posed in said member in such a manner as to distort the cross-section of said yarn forming materials as they pass through said member. y

9. In a yarn forming machine, a tubular member through which a plurality of yarn forming materials are adapted to be drawn, a forming die in the end of said member adapted to form said materials into a cord having a substantially circular cross-section,

means insaid member to` deform said cord to give 1t a non-circular cross-section to prevent its rotating, andv means to wrap a reinforcing element around said yarn forming v each other.

11. A die for a yarn forming machine, comprising a plurality of parts in triangular arrangement with convex laterally curved inner surfaces.

12. In a yarn making machine, a tubular member having an opening at one end to receive yarn making elements; a die in the end of said tubular member adapted to form a strip of fibrous material about a core as they pass through said tubular member; means to wind a. reinforcing element tightly about said strip and core so as to cut deeply into the material of said strip; and means to simultaneously prevent the rotation of said element and to force portions of said fibrous material over said reinforcing element.

In testimony whereof, I aiiiX my signature.

WILLIAM yNANFELDT. 

